Along with crime-fighting partner Robin and new recruit Batgirl, Batman battles the dual threat of frosty genius Mr. Freeze and homicidal horticulturalist Poison Ivy. Freeze plans to put Gotham City on ice, while Ivy tries to drive a wedge between the dynamic duo.

The Dark Knight of Gotham City begins his war on crime with his first major enemy being the clownishly homicidal Joker, who has seized control of Gotham's underworld.